{"asset": {        "version": "0.0",        "gltfUpAxis": "Y"    },    "geometricError":100.000000,"root": {        "transform": [-0.871424,-0.490531,0.000000,0.000000,0.211745,-0.376164,0.902034,0.000000,-0.441919,0.785065,0.434029,0.000000,-2820396.762250,5010412.701211,2751496.922012,1],    "boundingVolume": {    "region": [2.083439,0.448919,2.083551,0.449000,0.000000,62.954785]},"geometricError": 100.000000,        "refine": "REPLACE",        "content": {        "uri": "./tile/3/1/1_221156.b3dm"}}}